Hi
I tried to multiplay with my iPad mini2 and iphone6+.
When I start a map on one device, sometimes the server shows up and sometimes doesn't.
If I kill the app on both devices and try again, the server shows up at about 70% case.
if the client logs out and server goes on alone for 5 minutes, it doesn't shows up again on the client even if I restart the map. I should kill the app on both devices again.
If this happens, the client cannot find the server even when I manually type in the server IP.
Looks like the app stops running its server feature in serveral minutes and still holds the port until the app is killed.
It's the same case when I connect directly through IOS personal hot spot.

I think this is the same issue with below.
https://bugs.mojang.com/browse/MCPE-10552